KeyTech jumped nine cents (1.81 percent) on the Bermuda Stock Exchange yesterday, trading 7,000 shares to close at $5.05. Butterfield Preferred traded five shares with no change in share price, to close at $1,230.Overall, the BSX closed at 1071.13, up 1.12 points (.10 percent), trading 7,000 shares worth $35,850 and five US shares worth US$6,248.89